OK so I went in for my emissions test the other day and to my surprise I failed. They gave me a sheet telling me what failed. I went to the dealership and they said that it is because I have no "air mass flow meter" or something like that installed. He said this is also why my check engine light is always on. I think my friend might have removed this when installing my K&N intake/air filter. BUt the dealer said that you can still have this meter thing installed with the K&N. Question is, how do I know what this part looks like, cause i saved everything that came out during the install, and how do I hook it up with all the wiring there to turn off the engine light and pass the test? Thanks